You may not agree with using the gene-editing tool, CRISPR, to alter the DNA of human babies. But what about using it to engineer plants? Or wipe out one of the world's most dangerous creatures?

One of 2018’s unforgettable images: Maria Meza and her twin daughters sprint from tear gas lobbed at the border wall between the U.S and Mexico in Tijuana, Nov. 25, 2018.
Reuters/Kim Kyung Hoon
December 21, 2018

Older. More suburban. Less fertile. More diverse. This year, Americans grappled with some major shifts in the demographic landscape.

Even when black men attain higher education and greater social status, their health is still not as good as white men’s health, a study this year found.
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December 20, 2018